Electric-lamp fixture.



No. 825,445. PATENTED JULY 10, 1906. R. B. BENJAMIN. ELEGTRIG LAMP FIXTURE.

APPLICATION IILBD HAYQG. 1904 3 SHEETS-BEEF! i.

mwmmm n No. 825,445. PATENTED $31318, 1906.

t R, B. BBHJAMIN. BLEGTRIG LAMP FIXTURE.

Hummus 211.52 In :0, 004.

PATENTBD JULY 10, 1906.

R. B. BENJAMIN. ELBGTBIG LAMP FIXTURE.

APPLIUATIOI FILED ILYZB, 1904.

3 BREETB-RHERT 3x UNITED STATES PATENT OFFICE.

REUBEN B. mfiisfi fimo, lLmsois.

ELEOTFllG-LAMP F n-one.

Specificationof Letters Patent.

Patented July 10, 1906.

Applicstlos filed sagas, less. use No. 209,921.

To all whom it may concern:

Be it known that I REUBEN B. BE JAMI'N, a citizen .Of the'Umted States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Electric-Lamp Fixtures, of which the following is a full, clear, concise, and exact description, reference beinghad to the accompanying drawings, forming a part of this specification.

My invention relates to electric-lamp fixtures.

One of the objects of my invention is the provision of novel means for associating a suitable shade with a plural lamp-socket.

The other objects and novel features of m invention will more fully a pear from the o lowing description thereofand from the ac companying rawings, in which I have illustrated embodiments of my invention which I have designed for commercial purposes and which illustrate the general adaptation of my invention to commercial use.

Referring tofthe drawings, Figure 1 is a sectional view of one form of my invention.

Fig. 2 is a view taken on the line 2 2 of Fi 1 looking in the direction of the arrows. ig. 3 is a sectional view of another form of my invention. Fig. 4 is a view on the line 4 4 of Fig. 3. Fig. 5 is a sectional view-of another form of my invention. Fig. 6 is a view taken on the line 6 6 of Fig. 5; and Fig. 7 is asse tionel view of the form of my invention shown in Fig. 1, showing the construction and arrangement of parts within the hidesin casing 20.

efernng to the drawings by reference characters, in which like reference-numerals are used to designate like parts in the several es, a plural lamp-socket 1 is provided a apted to mechanically support and electrically. connect in circuit a plurality of elec- March 3,1903, and numbered 721,774. The

socket 1 is secured in an suitable manner to a base 2 and has an inc using casing or shell 20, adapted to inclose the live parts of the socket, provided with apertures arranged to receive the lam -bases, insulatin -bushings 21 being prefers. ly disposed within said apertures to insulate the outer lamp-contacts from the said casing. The base2 is secured to a subbese 3 in any suitable manner, as by bolts on screws 19. The subbase 3 has an outwardl -extendin flange adapted to engage the olts 19 an an inwardly-extending ange 5 for securing the fixture to the ceiling or other support 9, screws 6 6 being used for that purpose;

Disposed upon the subbase 3 are rings '7 i, of soft rubber or other resilient material, the surfaces of which are referabl engage the convex an ace of t e cluster or socket shade 8. The shade, of which any desired form may be used, is resiliently mounted upon therings i 7, which support the same slightly out of engagement with the subbase to prevent iniur to the shade in coming in contact with sai subbase, as shown in Fig. 1. Any desired method of securing the plural lamp-socket I and the shade 8 in proper relative positions may be substituted in lieu of that above described without departing from the spirit of my invention, and any desired means for resiliently mounting the shade 8 beveled to may be provided in lieu of the rings 7 7, or

the resilient mounting may be omitted.

' It will be noted that in installing my imroved socket the resilient rings 7 7 and the e de 8 are first placed in position u on the subbase 3 and said 'subbese secure to the support 9, after which the base 2, upon which the socket 1 is carried, is secured to the sub base by'th'e belts or screws 19. Referring to Figs. 3 and 4 the subbase 3 has an outwardlyextending flange -10 for securing the fixture in position upon the coil ing or other suitable support 9 and also eatrise a preferabl inwar ly extending flange 11 for'securing e base 12 of the plural lampsocket 1 to said subbase. It will be noted that a smaller socket may be mounted upon the base 3, which has the inwardly-extend ing flange 11, than is mounted upon diesel)- base having theoutwardly-extending flange, as shown inFig'. kwhiie permitting the samesizeelshadc X to he carried by the subbase 3.

The particular form. of base 2 and subbase 3 are not essential, as any desirable form of base and subbase for supporting the socket l and shade 8 in proper relative positions may be animated, and any desired means for securing the subbase to the support 9 and base 2 may be adopted in lieu of the screws Sand bolts 1!).

ln installing the form of my invention shown in Figs. 3 and 4 the subbase 3 is first secured in position and the shade 8 with its resilient mounting 7 placed in position upon the subbasc, the base 2 when secured to the snbbase serving to secure the shade 8 in position thereon.

Referring to Figs. 5 and 6, a suitable base 13 is secured to the plural lamp-soeket l in any suitable manner, preferably by having the extended edge 14 of the base turned or spun over a small annular projection carried by the plural lamp-soeket 1. An internallvscrew-threaded bushing 15, carried on the base 13, engages a screw-threaded bushing 16, carried on the subbase 17, which is sceured to the support 9 by means of screws or bolts 6 6 or in any other suitable manner, whereby thc sooket is rcmovably sn )portcd. Resilient rings f8 18, preferably ma e of soft rubber, are preferably disposed within rceesses formed in the base 13 and subbase 17 to form a resilient mounting for the shade h. The St'JOW-tlllt'tulvtl bushings I5 and 16 are not essential, as any desired means for securing the base 13 to the subbase 17 may be adopted in lieu of said screw-threatled bushings t5 and Hi.

In installing the form offniy invention shown in Figs. 5 and ft the subbase I7 is first secured in position and the shade and resilient rings 18 18 being disposed between the snbbase and the base 1.; said bases are adjusted to thcirpropcr )osilions by means of the sercw-thrcadcd bus hings l5 and Hi. It will be noted that the bushings const itufc an adjustable connection between the base ti; and the subbusc l7, which permits the resilient rings its l8 to be adjusted to accommodate lamp-shades S of. slightl \difl'crcnt size and shape. 1

My iltVt'Itliull is particularly applicable to so-callcd plural lamp-clusters. in which there is a suitable basic. or supporting part and an inclosing casing associated thcrcwith and having suitable lamp-openings, the electrical conducting parts of the socket being incloscd within thc casing. \ly invention )rovidcs a convenient and cfl'cctivc means for supporting a plural cluster of this type in position, whilc at the some time accommodating a reflector or shade. 'lhc combined su iport and shadc-holdcr ncscnfs a c \'lil1 drlcul body or spindle, w \ich is mounted upon the rear of the basic port ion of' thc clus tcl', to thus form an annular space at the rear of the cluster for the reception of the flange of t-hc reflector or shade. lrcfcrubly a pair of resilient rings is placed in this annnlar space, between which rings fbc flange ol the 1 shade may be interposed. As before stated. however, these resilient rings may be olmt tcd and other suitable means provided for securing the shade in position in the annularspaee. I ha vc shown in the drawings and dc cribed several different modifications of my invention, all of whieh, however, embody the same general principle. In the modification shown in Figs. 1 and 3 the combined support and shade-roller is secured to the basic part of the cluster by means of screws. in Fig 5 I have shown a modification wherein the basic part of the cluster is provided with a central threaded aperture, while the combined support and shade-holder carries a threaded stud, with which the threaded aperture is adapted to engage. This modification possesses advantages over that shown in th other figures, inasmuch as the shade can be removed or placed in position by simply unscrewing the cluster.

As shown in Fig. 7. it will be noted that the base 2 has a central projection pn yvhieh is carried upturned contacts 11, )orte d in position and electricallyconnected by a ring 0, and which form thc ccntral contacts for the lamps. The ring c is provided with an offset npturncd projection (I, having at the upper end thereof a binding-post r, to which one of the leading-in wires may. be Connected. A contact-plate having upturned portions f, provided with openings to permit the central terminal of the lamp to engagethccontaetsd, is also supported on the base .2 and is provided with threaded shells adapted to support the lamps in position and upon which are secured the insnlatbig-bushings 21. A binding-post g is mounted upon the contactplatc, to which the opposite leading-in wire may be secured. By this arrangement it will be noted that all of the electrical con duct iug parts of the cluster are inclosed with in the casing 20.

Having described my invention, what I claim as new, and desire to secure by Letters t. The combination with a plural lampclustcr, having a suitable basic part and an int-losing casing with suitable lamp-openings, the electrical conducting parts of the cluster being incloscd within said casing, of a cylin drical metallic combined support and shadeholdcr dctachably connected to the basic part of said cluster and of less diameter than said basic part to halve an annular space in the rcar of' said cluster for the reception of the flange of a shade.

J. The combination with a plural lampcluster. having a suitable basic part and an iuclosiug casing with suitable lampopcnings, the electrical conduc ing parts of the cluster bcing incloscd within said casing. of a cylindrical mcfallic combined support and shadcholdcr dctachahlv onnected to the basic part of said cluster and of less diameter than said basic nirt to leave an annular space in the roar of said clustcr for the reception of the flange of a shade, and a pair of of re silient 'material surrounding said cylindrical support and lying in said annular space, between which i'in the flange of a shade is adapted to be hefii.

3. The combination with a plural lamp cluster, having a back plate with a central threaded oYemng and an inclosing easinghaving suitab e lamp-openings, the electrical conducting parts of the cluster being inoiosed within said casing of a combined cluster-support and shade-holder havin an externallythreaded stud to engage sai central threaded aperture.

4. The combination with a plural lampcluster, having a back plate with a central threaded opening and an inelosing easin having suitable lamp-openings, the eieetriorfi conductin parts of the olusterbeing inclosed within said casing, ef a combineicluster-support and shade-hoider having a externallythreaded stud to engage said central threaded aperture, and havlng a flange, between which flange and the body of the lamp-cluster V a shade is adapted to be interposed.

5. The combination with a plural iampcluster, having a back plate with a" central threaded opening, and an inclosin casin having suitable lamp-openings, the e ectrica l conductin parts of the cluster being inclosed within sai casing, (if a combined cluster and shade-hoider having at one end an externally threaded stud to engage said central threaded aperture, and havin at the other end a flange, and a pair of resi lent rings, inter osed between said flange and the bod of the ampcluster, between which rings a si iade is adap ted to be interposed.

In witness whereof I have hereunto subscribed my name in the presence of two witnesses.

REUBEN B. BENJAMIN.

Witnesses:

E. R. KING, M. R. Roonnoan. 

